Sealing device for closed containers



April 18, 1933. F. M. SHOOP SEALING DEVICE FOR CLOSED coN'rAINzns Filed Sept. .19. 1932 INVEN'TOR ATTORNEVJ Patented Apr. 18, 1933 UNITED s r-Ares PATENT. OFFICE FRED M. SHOOP, OF BURNT CABINS, PENNSYLVANIA, ASSIGNOE/ OF ONE-FOURTH." TO

CHARLES E. FULLER, OF BUR-NT CABINS, PENNSYLVANIA I SEALING DEVICE FOR CLOSED CONTAINERS Application filed September 19, 1932. Serial No. 633,901.

The present invention relates to an improved sealing device for closed containers and especially large milk shipping cans.

It is well known that in shipping milk from dairy farm districts to various dairies, foreign matter such as dust and dirt and the l1ke settles around the mouth of the can where the closure or cap engages, and due to suction created. on the interior of the can due to agitation of the milk resulting from the vibration, particles of foreign matter are drawn between the parts, therefore when the milk is poured from the can, provided the margin of the mouth end of the can is not wiped off, such foreign matter will mix with the milk, and therefore contaminate the same.

It is the purpose of the present invention to provide an improved sealing device to be arranged between the parts where the closure engages the entrance mouth of the can, with a portion of the sealing device pulled down over the margin of the flange of the entrance mouth, thereby precluding any foreign matter or particles, such as bacteria, dust and dirt.-

It is another purpose to provide a sealing device which may be carried by the cover and stretched or folded'back over the cover when the cover is not in use, but-when the cover is arranged in place in engagement with the en trance mouth ofthe can or other container,

the sealing device is pulled downover the marginal flange of the entrancemouth It is to be understood that the particulars herein given are in noway limitative, and that while still keeping within the scope of the invention, any desired modification of details and proportions may be made in the construction of the appliance according to circumstances. 1

The invention comprises further features and combination of parts to be hereinafter set forth, shown in the drawing and claimed.

In the drawing Figure 1 is a view of a conventional type of milk shipping can showing the closure or cover applied, with the sealing device in position.

Figure 2 is a View of a portion of the entrance mouth of the milk can, showing the cover in a position to be inserted, with the sealing device stretched back over the closure.

Figure 3 is a secti'oi'ial'view through a milk shipping can showing the closure or cover applied with the sealing device in an operative position, in such wise as to preclude all foreign matter as'bacteria, dust and dirt.

Referring to the drawing 1 identifies a conventional type of milk shipping can or other container having an entrance mouth 2 and a marginal flange 3, interiorly of which an annular recess 4 is formed.

A cover or closure 5 is provided, and which has a depending extension neck 6, which telescopically fits the entrance opening or mouth 2 of the can. The fact is. the entrance opeiring or mouth 2 is adjoining the neck f the can.

A pliable or flexible sealingdevice 8 of rubber or a composition thereof is provided. This sealing device has a thickened flange or head 9 which fits closely about the depending neck 6 of the closure or cover 5, and in such wise as to engage in the annular recess or cavity 4 which adjoins the .flange 3 of the entrance opening 2 of the can. By means of the thickened bead or flange 9 engaging the annular recess or cavity 4, a sealing action is created between the cover or closure 5 and the entrance opening.

When the cover or closure is not in use the pliable skirt 10 of the sealing device is stretched back over the cover or closure, as shown clearly in Figure 2.1 The marginal edge of the portion of theskirt 10 which is stretched back over the cover or closure is in the form of a bead or flange 11. While this bead or flange 11 is elastic enough to alfow.

it to stretch back and forth over'the margin of the cover or closure, it possesses suflicient the can the bead or flange 11 is stretched back over the cover or closure as in Figure 2, and then the cover or closure 1s removed, in which case the" contents can be easily poured, wlthout carrying with it any foreign particles that a would otherwise collect between the parts of the cover and the flange 3, provided the sealing device were not in use. In other words the upper exterior face of the flange 3 as well as the interior of the entrance mouth 2 can be 7 kept clean and free of dust and dirt.

The invention having been set forth, what is claimed is:

1. In a sealing device for shipping milk cans, the combination with a can body having a neck and including an entrance mouth, the neck merging into a marginal flange, of a closure or cover provided with a depending neck engaging the entrance mouth, a flexible or pliable sealing device having an enlarged bead or flange at one end fitting closely about the depending neck of the cover, said sealing device comprising a pliable or flexible skirt to be stretched back over the cover when the cover is not in use, the other end of the sealing device having a bead or flange, the pliable or flexible skirt adapted to be stretched over the flange of the can neck, whereby the second bead or flange .may hug closely against the exterior of the neck of the can.

2. As an article of manufacture, a sealing device for milk shipping cans provided with a neck and a filling entrance mouth including a cover insertable therein, said sealing device comprising a pliable skirt body having a bead or flange at one end to hug closely about a depending neck of the cover, therefore engaged between said depending neck and the wall of the entrance opening, the skirt body adapted to be stretched over the margin of the entrance opening and having a bead or flange at its other end to hug closely about the exterior of the neck of the can, thereby precluding foreign matter from the engaging parts of the can and cover.

3. As an article of manufacture, a sealing device comprising a flexible skirt body with an elastic thickened flange at one end to closely hug a depending neck of a closure for a shipping milk can, said skirt body adapted to be stretched over the upper margin of the closure when the closure is not in use, said skirt body, when the cover is inserted in an entrance opening of the milk can adapted to be strecthed down over a marginal flange of the entrance opening, the other end of the skirt body having an elastic flange to .closelv fit the exterior of a neck of a shipping milk can when the skirt body is stretched downwardly and the cover inserted, thereby precluding the entrance of foreign matter between the engaging parts.

In testimony whereof I aflix my signature.

FRED M. SHOOP. 

